Yellow Wheel Casters

Yellow usually marks a high-capacity polyurethane compound. The color signals a heavy-duty tread engineered to carry serious loads, 1,500 to 4,200 lbs per caster here, while keeping polyurethane's quiet, non-marking, floor-friendly rolling.

Yes. Like other quality polyurethane wheels, yellow treads are non-marking and floor-friendly, protecting finished and sealed floors. That is a key advantage over cast iron, which carries similar loads but marks floors and runs loud.

These range from about 1,500 to 4,200 lbs per caster. The heavy-duty polyurethane carries loads approaching metal-wheel capacity. Divide your total load across all casters and add a safety margin, sizing up the wheel for heavier loads.

Yellow polyurethane carries nearly as much weight as cast iron while rolling quieter, protecting floors, and gripping better. Cast iron still wins for extreme heat or floors covered in sharp debris, but for heavy carts on finished floors, yellow polyurethane is usually the smarter choice.